Photos of the devastation caused by massive floods in Texas, Oklahoma, and Mexico

Photo by Drew Anthony Smith/Getty Images Over the Memorial Day weekend, parts of Texas, Oklahoma, and northern Mexico were hit hard by a massive rainstorm that has caused deadly flooding.

CNN reports that 22 people have been killed and a dozen more are missing. Two people died overnight in Houston, bringing the total to five fatalities in Texas and four in Oklahoma, while 13 died from the flooding in Mexico.

"We've seen flooding before, but not nearly to this extreme," Gage Mueller, a Houston resident for the past 40 years, told CNN. "It rains and it rains and it rains, and there's really nowhere for the water to go ... It's ridiculous."

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At least 13 people were reported killed in Ciudad Acuña, a Mexican border town west of San Antonio, after a tornado struck.

REUTERS/Ramiro Gomez

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Some parts of Austin are completely flooded with water after days of heavy rain.

Photo by Drew Anthony Smith/Getty Images)

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Police stretch tape across a flooded Sixth Street in the city on Monday after days of heavy rain.

Local river Shoal Creek is threatening to overflow.

Drew Anthony Smith/Getty Images

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By Monday night, the rain showed no signs of letting up.

Photo by Drew Anthony Smith/Getty Images

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In nearby Houston, fans who had just watched the Houston Rockets play the Golden State Warriors were forced to stay in the Toyota Center arena because of emergency flash flooding, while the video board provided news.

Instagram user Maherfilms posted this picture of Trinity River near Dallas overflowing with water on Tuesday.

We took our Inspire 1 out above the flooded Trinity River. Head over to maherfilms.com to see a once in a lifetime look at Downtown Dallas. #dji #inspire #drone #dallas #trinityriver #texasflood #downtowndallas #aerialvideography

A photo posted by Michael Maher (@maherfilms) on May 26, 2015 at 9:07am PDT

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Another Houston Twitter user, Steve Helm tweeted this image showing the extent of the flood damage.

Prayers for all affected by the #HoustonFlood- esp for the #poor who already struggle in "good weather." 3rd/5th Ward pic.twitter.com/Dt8cgRF73x— Steve Helm (@javapastor) May 26, 2015